After building up a catalog of 951 good messages and 388 spam messages, Bayes is getting quite good at categorizing my mail.

This is out of a set of 1339 messages classified by me, by hand.

neko-base> foreach j (BAYES_{01,10,20,30,40,50,60,70,80,90})
foreach? echo -n $j
foreach? egrep $j mail/track-spam|wc -l
foreach? end
BAYES_01      2
BAYES_10      0
BAYES_20      2
BAYES_30      6
BAYES_40      0
BAYES_50      0
BAYES_60     22
BAYES_70     32
BAYES_80     31
BAYES_90     88

neko-base> foreach j ( BAYES_{01,10,20,30,40,50,60,70,80,90} )
foreach? echo -n $j ; egrep $j mail/track-good|wc -l
foreach? end
BAYES_01     64
BAYES_10     12
BAYES_20     11
BAYES_30      8
BAYES_40      0
BAYES_50      0
BAYES_60      0
BAYES_70      0
BAYES_80      0
BAYES_90      0

neko-base> grep -c BAYES mail/track-*
mail/track-good:101
mail/track-spam:183

Overall here is the distribution of actual spamassassin scores. (Spamassassin was not used on all 1339 messages :)

neko-base> egrep "^X-Spam-Level:" mail/track-good | sort | uniq -dc ; egrep "^X-Spam-Level:" mail/track-good | wc -l
    108 X-Spam-Level:
      4 X-Spam-Level: *
      6 X-Spam-Level: **
      3 X-Spam-Level: ***
      2 X-Spam-Level: ****
    123
neko-base> egrep "^X-Spam-Level:" mail/track-spam | sort | uniq -dc ; egrep "^X-Spam-Level:" mail/track-spam | wc -l
      3 X-Spam-Level:
      3 X-Spam-Level: *
      6 X-Spam-Level: **
      9 X-Spam-Level: ***
      6 X-Spam-Level: ****
     13 X-Spam-Level: *****
      5 X-Spam-Level: ******
     17 X-Spam-Level: *******
      7 X-Spam-Level: ********
     16 X-Spam-Level: *********
      8 X-Spam-Level: **********
      7 X-Spam-Level: ***********
      9 X-Spam-Level: ************
      7 X-Spam-Level: *************
      8 X-Spam-Level: **************
      9 X-Spam-Level: ***************
      8 X-Spam-Level: ****************
      5 X-Spam-Level: *****************
      7 X-Spam-Level: ******************
      6 X-Spam-Level: *******************
      3 X-Spam-Level: ********************
      8 X-Spam-Level: **********************
      2 X-Spam-Level: ***********************
      2 X-Spam-Level: ************************
    178